
Same 5030 package and 10uH inductance, but has a lower RMS current rating that requires engineering review.
Finding a replacement for the MDA5030-100M inductor involves a trade-off. While some parts match the 5030 package, they may have lower current ratings. Other parts offer better electrical performance but require a PCB redesign.
FCH5030-100M has a lower RMS current rating (3.0A vs 3.8A), which could lead to overheating if not carefully evaluated.
Most electrically suitable alternatives are in different, larger packages and are not drop-in replacements.
No, a direct, fully-compatible replacement was not identified. The closest physical match, FCH5030-100M, has a lower current rating, which poses an electrical risk.
FCH5030-100M is the closest physical match but has a lower current rating. If the board can be redesigned, SMDRI127-100MT offers better performance.
The primary risk is either electrical (overheating due to lower current rating) or mechanical (incompatible package requiring a PCB redesign).

Same 5030 package and 10uH inductance, but has a lower RMS current rating that requires engineering review.
| Feature / factor | MDA5030-100M | FCH5030-100M | SMDRI127-100MT | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 5030 | 5030 | 12.3mm x 12.3mm | 5030 / 12.3mm x 12.3mm — Package size matches.; SMDRI127-100MT: Package is much larger and not a drop-in fit. | |
| Inductance | 10uH | 10uH | 10uH | 10uH — Inductance matches.; SMDRI127-100MT: Inductance matches. | |
| Current | 3.8A | 3.0A | 5.4A | 3.0A / 5.4A — RMS current is lower, risk of overheating.; SMDRI127-100MT: RMS current is higher. | |
| Saturation Current A | 2.5A | 3.5A | 9.0A | 3.5A / 9.0A — Saturation current is higher.; SMDRI127-100MT: Saturation current is significantly higher. | |
| Dcr Ohm | 88mΩ | 89.8mΩ | 21mΩ | 89.8mΩ / 21mΩ — DC resistance is slightly higher.; SMDRI127-100MT: DC resistance is much lower, improving efficiency. |
FCH5030-100M is the closest physical match but has a lower current rating (3.0A vs 3.8A). For new designs, SMDRI127-100MT offers superior electrical performance in a larger package.